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    <title>SEO搜索引擎优化</title>
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        <!-- 文章标签， 有内容重要，告诉爬虫 -->
        <article class="weui-article">
            <!-- 页面最多只能用一个h1  -->
            <h1>文章页大标题</h1>
            <section>
                <h2>二级标题</h2>
                <section>
                    <h3>三级标题</h3>
                    <section>
                        <h4>四级标题</h4>
                        <p>
                            Lorem, ipsum dolor sit amet consectetur adipisicing elit. Quas numquam asperiores repudiandae quod officiis doloremque non ab corrupti? Labore, sit quibusdam. Alias excepturi unde corrupti voluptas, nisi eum laborum assumenda!
                        </p>
                        <p>Lorem ipsum dolor sit, amet consectetur adipisicing elit. Quis rem quas fugiat recusandae, ut praesentium et aperiam neque natus dignissimos sed porro, est atque architecto fugit magnam labore debitis. Magni!</p>

                    </section>
                    <section>
                        <h4>列表示例</h4>
                        <section>
                            <h5>无序列表</h5>
                            <ul>
                                <li>
                                    Lorem ipsum dolor sit, amet consectetur adipisicing elit. Modi ullam tempore ipsa autem eligendi reiciendis quas nulla animi obcaecati assumenda nobis, similique vitae labore ad perspiciatis perferendis consectetur unde asperiores!
                                </li>
                                <li>
                                    Lorem ipsum, dolor sit amet consectetur adipisicing elit. Sequi eius modi eveniet consectetur mollitia, quaerat molestias magnam dolore dicta repellat nostrum! Maxime aut at nemo ea sapiente, eaque nulla odio.
                                </li>
                            </ul>
                        </section>
                        <section>
                            <ol>
                                <li>
                                    Lorem ipsum dolor sit amet consectetur adipisicing elit. Magni nisi nostrum, iste, quod blanditiis repellat aut, totam perferendis fuga dolor similique placeat. Ducimus at sit consequuntur possimus unde itaque maiores.
                                </li>
                                <li>
                                    Lorem ipsum dolor sit, amet consectetur adipisicing elit. Fugit quod a impedit vitae. Maiores ducimus sunt eum dolores iure ratione, minima inventore consequuntur accusantium sed atque, laudantium doloremque quod! Rerum.
                                </li>
                            </ol>
                        </section>
                    </section>
                </section>
            </section>
            <!-- 整合示例 -->
            <section>
                <h2>无障碍焦点整合实例</h2>
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